LOGO and natural language

Part One. Getting started in LOGO

LOGO as it comes

• Logo conversations
• The basic components of instructions
  • Logo data structures
    • Words, lists and natural language stucture
• The syntax of instructions
• The Logo interpreter
• Things to do 1 - Exploring Logo primitives

Educating the system

• Variables
• Things to do 2 - Using variables
• Managing variables in your workspace

• Extending the language
  • Defining procedures
    • Defining commands
      • An aside on input variables
    • Defining operations
      • Pickrandom
        • A note on mathematical and logical operations
• Things to do 3 - Spoonerisms and Pig Latin

First interlude - Lonely Hearts

• Lonely Hearts (A small ads microworld)
  • A first stab at implementing the system
  • And some improvements
• The procedure definitions
  • Some notes and cautions
• Things to do 4 - Experimenting with Lonely Hearts

Exercising control

• Randomness versus choice
• Imposing conditions
  • Test expressions - flags and predicates
    • Compound tests
    • Exercises with compound tests
  • Flow diagrams and flow of control
  • Putting conditions to work
  • User defined predicates
• Things to do 5 - Number and gender

Send in the clones

• Repetition and recursion
• Patterns in recursive procedure definitions
  • Patterns of input modification and termination
    • Numerical targets - a partridge in a pear tree
    • Non-numerical targets - sonority scales
  • Positioning the recursive call
    • Stack space
  • Output generation patterns. Passing the buck . . .
    • . . . and team work
• Recursion across procedures
• Towers of Hanoi - just in case a non-language problem helps
• Things to do 6 - Grammatical developments, Puzzles and DIY primitives

Second interlude - Facts and patterns

• Setting up a 'Facts' database
• Interrogation techniques
• Implementing queries
  • A matching tool
• The Facts procedures
• Things to do 7 - Improving and extending 'Facts'

In-flight changes

• Modifying the envoronment through user input
• Logo runs Logo
• Logo writes Logo